Apparatus for removing dust.



c. M. GREVSING. APPARATUS FOR H EMOVING DUST. I APPLICATION FLEDYOCTQ, ISIS. V- '1,174,065. Patented Mar. 7,1916.

NWN. f -J EN Nlm ..l @@mw@ wUruTEn STATES lTATENT oEEiCE. 1-

CHARLES M, GREISING, or ST. PAUL, MINNESOTA, ASSIGNOR To ST. RAL TWINE COMPANY, A` CORrORATIoN OE MINNESOTA.

Removing Dust, of which the following 1s i tion toremove a dust removing orv air purifying system a full, clear, and exact specification..

This invention relates to systems for removing dust from and for purifying air, and more particularly to standards or tables, upon which dust laden material is handled, forming a part of such systems through which dust is carried away from the surrounding air.

In' factories where twine is manufactured "a great deal of dust from the fiber or 'material from which twine is made is liberated. This .dust permeatesthe air, making working conditions in such factories not only undesirable but .injurious tohealth.

It, therefore, is the. object of. this invendust/ from the materials handled in such factories and to purify theI air. This object is accomplished by providing in `suitable standards or tables upon which dust laden material is handled, 'andmeans Not only will the dust .be carried. away-from material directly on top ofthe table, but any dust which surrounds the table will be for conveying away the dust.

This invention is illustrated on companying sheet of drawings, in which- Figure 1 1S a dust removing and air purifying systemembodying my invention; Fig. 2 is a side elevation o my dust removing Standard or table forming a part of the in vention; Fig. 3 is a plan -view of the same; and Fig. 4 is an enlarged fragmentary sectional view of the same standard or table showing more in detail' the structural. arrangementof the Same. 1

The various novel features of my invention will be apparent from the description and drawings and will be particularly pointed out in the lappended claims.

` -By referring articularly to"v Fig. `1l a partial layouto plant is Seen, in which are shown 'two ma-l i f chines 10,through which iber'or -other material from which' twine is made passes. Preparatory to passing throgh machines ythe fiber isplaced upon standards or tables 11, where the liber rial from which twine is made contains a APFARATUS FOB REMOVING DUST.

the acwill be drawn through a 'twine manufacturing n is spread and thenV fedit 'the machines. Such liber or mate-A the Vfiber is handled. In factoriesy where special precaution is not taken this dust `fills the air and has proved to be of great annoyance. In order to remove the dustl from the fl er and fromrthe air generally, when the er is first handled, preparatory to its being fed into machines 10, I have provided the tables 11 which have aperforatedy top 12 and perforated sides 13; The table is provided with funnel shaped members 14, preferably of sheet metal, which lead from Patented Mar. 7,1916; v

the' upper perforated portions of the table.

The'sefunnel shaped portions' 14 each lead 16 leads to a main suction ipe'17- connected with an exhaust fan (not Shown).` The under part of the table 11 is formed with other funnel shaped portions 18, each of suction being effective material which ishandled on the tablesll will have the dust drawn therefrom and to a central conduit 15, fromwhich a pipe I.

. is apparent, therefore, thatdue to the suc-v ,tionof a fan, the

.through the pipes 17 and 16, any dust laden 80 carried away through the exhaust System. l

drawn through the side portions 13 thereof. Also any dust which has reached the .licor the funnel shaped portions 18 of the table.`

To further purify the air and to remove anyu remaining dustv which may be inthe 'ber after/it 'has passed from the tables 11 into machines' 10, such remaining dust lwill vbe drawn up through hoods 19 1ocated over the machines ,and connectedvto the main exhaust pipe 17 through which dust is carried.

`Thev table itself includes a skeleton structure, preferably of metal, comprising four relatively long angle iron side'strips 20 4connected longitudinally by similar shorter strips21 and-sixmain body ,of the table..

By referring to Fig. 4 it will be 4noted that the perforated topl the edges of the Side members and clamped legs 22 for supporting the' in a fixed position'by-.a metalfstrip 23 passing around the periphery of the table and screws 24 passing throughv said strip23 and 1 10 side members.: In one side of the `upper body portion of the table are two doors 25 slidably `mounted in .channel portions 26 formed by bending side portions of the table. These slides 25 are located opposite the funnel portions 14 and are for the purpose of rendering it possible to remove any material from the' funnelsand conduit 15 7 which may tend to clog the passageways thereof. By means of this system it is possible to remove the dust from'material llandledintwine mills and to maintain the air in a pure condition,` thus avoiding any serious results which might otherwise be occasioned. l s f There may be various modifications of my invention as herein particularly described,-

lampes and means for exhausting air through said portions.

In testimony whereof I afliX my signature, in the presence of two witnesses.

CHARLES M. GREISING.

Witnesses:

SIGURD J. OLBERG, vMARTIN W. MGDONQUGH. 

